steering INFINITI M35 2007 Factory Manual Online
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Page 1013 of 4647
![INFINITI M35 2007 Factory Manual Online BL-80
INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
CAUTION:
When CAN COMM [U1000] and CONTROL UNIT (CAN) [U1010] are displayed, give priority to performing trouble diagnosis.
DATA MONITOR](/img/42/57024/w960_57024-1012.png "INFINITI M35 2007 Factory Manual Online BL-80
INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
CAUTION:
When CAN COMM [U1000] and CONTROL UNIT (CAN) [U1010] are displayed, give priority to performing trouble diagnosis.
DATA MONITOR")
BL-80
INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
CAUTION:
When CAN COMM [U1000] and CONTROL UNIT (CAN) [U1010] are displayed, give priority to performing trouble diagnosis.
DATA MONITOR
STRG COMM 1
[B2013]Communication malfunction with steering lock unit is
detectedCheck steering lock unitBL-155
STEERING LOCK UNIT
[B2551]Even if the communication with steering lock unit is
normally performed, the steering lock is malfunctioningReplace steering lock
unitBL-157
INTELLIGENT KEY
[B2552]Internal malfunction is detected in Intelligent Key unitReplace Intelligent Key
unit.BL-161
IGN POWER CIRCUIT
[B2553]It continues for 2 seconds or more that ON power sup-
ply input to Intelligent Key unit is excessively low when
the power supply position is in ON positionCheck Intelligent Key
unit ON power supply
inputBL-161
ACC POWER CIRCUIT
[B2554]It continues for 2 seconds or more that ACC power
supply input to Intelligent Key unit is excessively low
when the power supply position is in ACC or ON posi-
tionCheck Intelligent Key
unit ACC power supply
inputBL-162
STOP LAMP CIRCUIT
[B2555]5V or less is detected at both the stop lamp switch sig-
nal input circuit that is input to Intelligent Key unit and
the monitor input before stop lamp switchCheck stop lamp switchBL-165
ENG START SW
[B2556]Condition that push-button ignition switch is pushed is
detected continuously for 100 seconds or moreCheck push-button igni-
tion switchBL-166
VEHICLE SPEED
[B2557]Some differences occur on one or more vehicle speed
inputs of Intelligent Key unitCheck vehicle speed sig-
nalBL-167
SHIFT POSITION
[B2558]
There is a difference between the shift position input
via CAN communication and the P position input by
detente switch
Vehicle speed (5 km/h or more) is detected continu-
ously for 10 seconds or more even if the shift posi-
tion is detected in P position when the power supply
position is in ON positionCheck shift position inputBL-170
PDU
[B2559]Internal malfunction is detected in PDU Replace PDUBL-172
START POW SUP CIRC
[B2560]Though the engine start operation is not performed,
starter relay in IPDM E/R is ONCheck starter power sup-
plyBL-172
LOW VOLTAGE
[B2562]Battery power supply input to Intelligent Key unit (8.8V
or less) is detected continuously for 1.5 seconds or
moreCheck battery low volt-
ageBL-175
HI VOLTAGE
[B2563]Battery power supply input to Intelligent Key unit (18V
or more) is detected continuously for 90 seconds or
moreCheck for battery high
voltageBL-176
NATS MALFUNCTION
[B2590]Malfunction is detected in immobilizer systemCheck (IVIS) NATS trou-
ble diagnosis procedureBL-244
Suspect Systems
[DTC]Diagnostic item is detected when... Repair work Reference page
Monitor item Content
DR REQ SW Indicates [ON/OFF] condition of door request switch (driver side).
AS REQ SW Indicates [ON/OFF] condition of door request switch (passenger side).
BD/TR REQ SW Indicates [ON/OFF] condition of trunk opener request switch.
ON POS Indicates [ON/OFF] condition of ignition switch in ON position.
ACC POS Indicates [ON/OFF] condition of ignition switch in ACC position.
DOOR STAT SW Indicates [ON/OFF] condition of door unlock sensor.
STOP LAMP SW Indicates [ON/OFF] condition of stop lamp switch.
P RANGE SW Indicates [ON/OFF] condition of park position switch.
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INTELLIGENT KEY SYSTEM
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Revision: 2007 April2007 M35/M45
ACTIVE TEST
Test item Description
DOOR LOCK/UNLOCKThis test is able to check door lock/unlock operation.
The all door lock actuators are locked when “LOCK” on CONSULT-II screen is touched.
The all door lock actuators are unlocked when “ALL UNLK” on CONSULT-II screen is touched.
The door lock actuator (driver side) is unlocked when “DR UNLK” on CONSULT-II screen is
touched.
The door lock actuator (passenger side) is unlocked when “AS UNLK” on CONSULT- II screen
is touched.
The trunk lid opener actuator is open when “TRUNK OPEN” on CONSULT- II screen is
touched.
ANTENNAThis test is able to check Intelligent Key antenna operation.
When the following conditions are met, hazard warning lamps flash.
Inside key antenna (Instrument center) detects Intelligent Key, when “ROOM ANT1” on CON-
SULT-II screen is touched.
Inside key antenna (Center console) detects Intelligent Key, when “ROOM ANT2” on CON-
SULT-II screen is touched.
Inside key antenna (rear seat) detects Intelligent Key, when “ROOM ANT3” on CONSULT-II
screen is touched.
Inside key antenna (Trunk room) detects Intelligent Key, when “LAG ANT1” on CONSULT-II
screen is touched.
Outside key antenna (Driver side) detects Intelligent Key, when “DRIVER ANT” on CONSULT-II
screen is touched.
Outside key antenna (Passenger side) detects Intelligent Key, when “ASSIST ANT” on CON-
SULT-II screen is touched.
Outside key antenna (Trunk room) detects Intelligent Key, when “BD/TR ANT” on CONSULT-II
screen is touched.
OUTSIDE BUZZERThis test is able to check Intelligent Key warning buzzer operation.
Intelligent Key warning buzzer sounds when “ON” on CONSULT-II screen is touched.
INSIDE BUZZERThis test is able to check warning chime into combination meter operation.
Take away warning chime sounds when “TAKE OUT” on CONSULT-II screen is touched.
Key warning chime sounds when “KEY WARN” on CONSULT-II screen is touched.
P position warning chime sounds when “P RNG WARN” on CONSULT-II screen is touched.
ACC warning chime sounds when “ACC WARN” on CONSULT-II screen is touched.
INDICATORThis test is able to check warning lamp operation.
“KEY” Warning lamp illuminates when “KEY IND ON” on CONSULT-II screen is touched.
“KEY” Warning lamp flashes when “KEY IND FSH” on CONSULT-II screen is touched.
LCDThis test is able to check meter display information
Engine start information displays when “BRAKE/P” on CONSULT-II screen is touched.
Engine start information displays when “BRAKE/P/ON” on CONSULT-II screen is touched.
Key ID warning displays when “KEY ID NG” on CONSULT-II screen is touched.
Steering lock information displays when “STLCK RELES” on CONSULT-II screen is touched.
P position warning displays when “P RNG IND” on CONSULT-II screen is touched.
Intelligent Key insert information displays when “INSERT KEY” on CONSULT-II screen is
touched.
Intelligent Key low battery warning displays when “KEY BAT LOW” on CONSULT-II screen is
touched.
Take away through window warning displays when “TK AWAY WDW” on CONSULT-II screen is
touched.
Take away warning display when “TAKE AWAY” on CONSULT-II screen is touched.
OFF position warning display when “IGN OFF WARN” on CONSULT-II screen is touched.
P RANGEThis test is able to check A/T device power supply
A/T device power is supplied when “ON” on CONSULT-II screen is touched.
Page 1059 of 4647
BL-126
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
Revision: 2007 April2007 M35/M45
System DescriptionNIS001Y8
The engine start function of Intelligent Key system is a system that makes it possible to start and stop the
engine without removing the key. It verifies the electronic ID using two-way communications when press-
ing the push-button ignition switch while carrying the Intelligent Key, which operates based on the results
of electronic ID verification for Intelligent Key using two-way communications between the Intelligent Key
and the vehicle (Intelligent Key unit).
NOTE:
The driver should always carry the intelligent key at all times.
Intelligent Key has 2 IDs (for Intelligent Key and for immobilizer). It can perform the door lock/unlock oper-
ation and the push-button ignition switch operation when carrying the registered Intelligent Key.
When the Intelligent Key battery is discharged, it can be used as emergency by inserting the Intelligent
Key to the key slot. At that time, perform the immobilizer ID verification. If it is used when carrying the
Intelligent Key, perform the Intelligent Key ID verification.
If the ID is successfully verified, and when push-button ignition switch is pressed, steering lock will be
released and initiating the engine will be possible.
If the door lock/unlock operation is performed when the Intelligent Key battery is discharged, all doors
lock/unlock can be performed by operating the driver door key cylinder using the mechanical key set into
the Intelligent Key.
Intelligent Key can be registered up to 4 keys (Including the standard Intelligent Key) on request from the
owner.
NOTE:
Refer to BL-43, "INTELLIGENT KEY SYSTEM" for any functions other than engine start function of
Intelligent Key system.
10. Unified meter and A/C amp M64,
M6511. Combination meter M52 12. Security indicator
(Multifunction switch) M69
13. Steering lock unit M35
(Steering column)14. Remote keyless entry receiver
(View with instrument lower panel
RH removed) M89 15. Key slot M14
PIIB5896E
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INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
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Revision: 2007 April2007 M35/M45
PRECAUTIONS FOR INTELLIGENT KEY SYSTEM
In the Intelligent Key system of model Y50, the transponder (the chip for immobilizer ID verifica-
tion) is integrated into the Intelligent Key. (For the conventional models, it is integrated into the
mechanical key.) Therefore, the mechanical key cannot perform the ID verification, and thus it can-
not start the engine. Instead of it, the immobilizer ID verification can be performed by inserting the
Intelligent Key into the key slot, and then it can start the engine.
When registering the Intelligent Key, 2 registration procedures (immobilizer ID registration and
Intelligent Key ID registration) should be performed. The immobilizer ID registration is the proce-
dure that registers the ID stored into the transponder (integrated into Intelligent Key) to the BCM.
The Intelligent Key ID registration is the procedure that registers the ID to the Intelligent Key unit.
Each registration is a different procedure.
When performing the Intelligent Key ID registration only, the engine cannot be started by inserting
the key into the key slot. When performing the engine immobilizer ID registration only, the engine
cannot be started by the operation when carrying the key. The registrations of both systems
should be performed.
Operation DescriptionNIS001Y9
SYSTEM DIAGRAM
OPERATION WHEN INTELLIGENT KEY IS CARRIED
Description
1. When the push-button switch is pressed, the Intelligent Key unit signals the inside key antenna and sends
the request signal to the Intelligent Key.
2. The Intelligent Key receives the request signal and sends the Intelligent Key ID signal to the Intelligent
Key unit via the remote keyless entry receiver.
3. The Intelligent Key receives the Intelligent Key ID signal and verifies it with the registered ID.
4. If the ID is successfully verified, the Intelligent Key unit sends the steering unlock signal to the steering
lock unit. Then, it sends each power supply request signal to PDU (Power Distribution Unit) after unlock-
ing the steering lock.
5. If the Intelligent Key unit judges that the engine start condition is satisfied, it sends the starter request sig-
nal via CAN communication to IPDM E/R and turns the starter motor relay ON.
6. The steering lock unit unlocks the steering lock when receiving the signal. PDU starts the power supply
distribution according to the push-button ignition switch operation when receiving the signal. If it enters the
engine start permission mode, the power supply is supplied from PDU to the starter motor relay and the
cranking is started.
CAUTION:
If a malfunction is detected in the Intelligent Key system, the “KEY” warning lamp in the combina-
tion meter illuminates for 15 seconds. At that time, the engine cannot be started.
7. When Intelligent Key unit received feedback signal from ECM acknowledging the engine has been initi-
ated, the Intelligent Key unit sends a stop signal to IPDM E/R and stops the cranking by turning OFF the
PIIB6272E
Page 1075 of 4647
BL-142
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
Revision: 2007 April2007 M35/M45
10 VPush-button ignition
switch ON indicatorOutputONPush-button ignition switch is in
ON position0
—Push-button ignition switch is in
any position
(Except ON position)1.2
13 LG/B Key slot illumination Output LOCKInsert Intelligent Key into key slot
and driver side door is open.Battery voltage
Remove Intelligent Key from key
slot.0
15 LGSteering lock unit
power sourceOutput LOCK — Battery voltage
16 P/BSteering lock unit sig-
nalInput/
OutputLOCK Steering lock: Lock Battery voltage
ACC
Steering lock: Unlock
(Unlocked moment)0
NO 0
19 BR/Y Key switch signal Input LOCKInsert Intelligent Key into key
slot.0
Remove Intelligent Key from key
slotBattery voltage
20 B Ground — — — 0
27 VA/T device (Detention
switch)InputLOCK A/T selector lever is in P position 0
ON Other than above Battery voltage
28 SB Starter relay InputONA/T selector lever is in N or P
positionBattery voltage
—Ignition switch position is in
LOCK position or A/T selector
lever is in any position other than
N or P position0
29 V/R Stop lamp switch Input —Brake pedal depressed Battery voltage
Brake pedal released 0
30 L/WIgnition power supply
(ACC)Input ACCIgnition switch position is in ACC
or ON positionBattery voltage
31 GRIgnition power supply
(ON)Input ONIgnition switch position is in ON
or START positionBattery voltage
33 O PDU signal InputLOCK Steering lock: Lock 0
ACC Steering lock: Unlock 8
34 R PDU feed back signal InputLOCKSleep condition (30 seconds or
more after all doors are closed
under the condition that the igni-
tion switch position is in the
LOCK position)1
—Wake-up condition (any condition
other than above)0 Te r m i -
nal
No.Wire
colorItemSignal
Input/
OutputCondition
Voltage (V)
(Approx.) Push-
button
ignition
switch
positionOperation or conditions
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INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
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Revision: 2007 April2007 M35/M45
35 LG Vehicle speed signal Input ONAt speedometer operation (vehi-
cle speed approx. 40 km/h)
37 P CAN-LInput/
Output—— —
38 L CAN-HInput/
Output—— —
39 BR/WPush-button ignition
switchInput —Push-button ignition switch is
pressed0
Push-button ignition switch is
releasedBattery voltage
40 B Ground — — — 0
41 Y Power source (fuse) Input — — Battery voltage
42 P PDU wake up signal OutputLOCKSleep condition (30 seconds or
more after all doors are closed
under the condition that the igni-
tion switch position is in the
LOCK position)Battery voltage
—Wake-up condition (Open driver
door)0
43 G Starter signal OutputON At starter motor cranking 0
— Any condition other than above Battery voltage
46 VSteering lock control
signal-1Output—Push-button ignition switch is
pressed under the condition that
Intelligent Key is in the vehicle or
Intelligent Key is insertedBattery voltage
LOCKIgnition switch position is in
LOCK position (Steering lock
activated)Battery voltage → 0 → Battery
voltage
(Battery voltage is detected
when activating the steering
lock)
47 LGInside key antenna (+)
signal
(Instrument center)Input/
Output
LOCK Any door open → closed
(Door switch: ON → OFF)
48 VInside key antenna (–)
signal
(Instrument center)Input/
Output
49 BInside key antenna (+)
signal
(console)Input/
Output
LOCKAny door open → closed
(Door switch: ON → OFF)
50 WInside key antenna (–)
signal
(console)Input/
Output Termi-
nal
No.Wire
colorItemSignal
Input/
OutputCondition
Voltage (V)
(Approx.) Push-
button
ignition
switch
positionOperation or conditions
PKIA1935E
SIIA1910J
SIIA1910J
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BL-144
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
Revision: 2007 April2007 M35/M45
51 F/LInside key antenna (+)
signal
(Rear seat)Input/
Output
LOCKAny door open → closed
(Door switch: ON → OFF)
52 R/WInside key antenna (–)
signal
(Rear seat)Input/
Output
53 G/WInside key antenna (+)
signal
(Trunk room)Input/
Output
LOCKAny door open → closed
(Door switch: ON → OFF)
54 LGInside key antenna (–)
signal
(Trunk room)Input/
Output
56 B Ground — — — 0
57 L Power source (fuse) Input — — Battery voltage
58 OA/T device (Detention
switch)Output LOCKAt sleep (30 seconds or more
after all doors are closed under
the condition that the ignition
switch position is in the LOCK
position)0
At wake-up (Open driver door) Battery voltage
63 P Stop lamp switch Input —Brake pedal depressed Battery voltage
Brake pedal released Battery voltage
64 L/RPush-button ignition
switch illuminationOutput —Push-button ignition switch illumi-
nation is turned on2.6
Push-button ignition switch illumi-
nation is turned off
(15 seconds or more after the
driver door is closed)0
69 OSteering lock unit con-
dition signal-1InputLOCK Steering lock: Lock 0
ACC
Steering lock: UnlockBattery voltage
ON Battery voltage
70 L/YSteering lock unit con-
dition signal-2InputLOCK Steering lock: Lock Battery voltage
ACC
Steering lock: Unlock0
ON 0
71 LGSteering lock control
signal-2OutputLOCKPush-button ignition switch is
pressed under the condition that
Intelligent Key is in the vehicle or
Intelligent Key is insertedBattery voltage
ACCIgnition switch position is in
LOCK position (Steering lock
activated)Battery voltage → 0 → Battery
voltage
(Battery voltage is detected
when activating the steering
lock)
72 B Ground — — — 0 Te r m i -
nal
No.Wire
colorItemSignal
Input/
OutputCondition
Voltage (V)
(Approx.) Push-
button
ignition
switch
positionOperation or conditions
SIIA1910J
SIIA1910J
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INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
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Terminals and Reference Value for Steering Lock UnitNIS001YF
Terminals and Reference Value for BCMNIS001YG
Te r m i -
nal
No.Wire
colorItemSignal
Input/
OutputCondition
Voltage (V)
(Approx.) Push-
button
ignition
switch
positionOperation or conditions
1 GR PDU signal Input LOCKPress push-button ignition
switch with Intelligent Key
inside vehicle0 → Battery voltage → 0
(Battery voltage is detected when
pressing the push-button ignition
switch)
3 O Condition signal-1 OutputLOCK Steering lock: Lock 0
ACC
Steering lock: UnlockBattery voltage
ON Battery voltage
4P/BIntelligent Key unit
signalInput/
OutputLOCK Steering lock: Lock Battery voltage
ACC
Steering lock: Unlock0
ON 0
5 B Ground — — — 0
6 B Ground — — — 0
7 LG Power source Input LOCK — Battery voltage
8 L/Y Condition signal-2 OutputLOCK Steering lock: Lock Battery voltage
ACC
Steering lock: Unlock0
ON 0
Te r m i -
nal
No.Wire
colorItemSignal
Input/
OutputCondition
Voltage (V)
(Approx.) Push-but-
ton igni-
tion
switch
positionOperation or conditions
23 W/V Security indicator Output LOCKIntelligent Key is removed from key
slot and power supply position is in
LOCK positionBattery voltage → 0
(Every 2.4 seconds)
37 LGKey slot
(Key switch signal)Input LOCKIntelligent Key is removed from key
slot0
Intelligent Key is inserted into key slot Battery voltage
38 WIgnition power supply
(ON or START)Input ONPower supply position is in ON posi-
tionBattery voltage
39 L CAN-HInput/
Output—— —
40 P CAN-LInput/
Output—— —
42 P Power source (fuse) Input — — Battery voltage
52 B Ground — — — 0
55 WPower source (Fusil-
lade link)Input — — Battery voltage
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INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
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Revision: 2007 April2007 M35/M45
Terminals and Reference Value for PDUNIS001YI
Te r -
minal
No.Wire
colorItemSignal
Input/
OutputCondition
Voltage (V)
(Approx.) Push-
button
ignition
switch
positionOperation or conditions
1 P Wake up signal InputLOCKSleep condition (30 seconds or more
after all doors are closed under the
condition that the power supply posi-
tion is in the LOCK position)Battery voltage
— Wake-up condition (Open driver door) 0
2 G Starter control signal InputON At starter motor cranking 0
— Any condition other than above Battery voltage
3GRSteering lock unit
power sourceOutputLOCKPush-button ignition switch is pressed
under the condition that Intelligent
Key is in the vehicle or Intelligent Key
is inserted0 → Battery voltage → 0
— Any condition other than above 0
6VSteering lock control
signal-1Input—Push-button ignition switch is pressed
under the condition that Intelligent
Key is in the vehicle or Intelligent Key
is insertedBattery voltage
LOCKPower supply position is in LOCK
position
(Steering lock activated)Battery voltage → 0 → Bat-
tery voltage
(Battery voltage is detected
when activating the steer-
ing lock)
7LGSteering lock control
signal-2Input—Push-button ignition switch is pressed
under the condition that Intelligent
Key is in the vehicle or Intelligent Key
is insertedBattery voltage
LOCKPower supply position is in LOCK
position
(Steering lock activated)Battery voltage → 0 → Bat-
tery voltage
(Battery voltage is detected
when activating the steer-
ing lock)
9OSteering lock feed
back signalOutput— Steering lock: Lock 0
LOCK Steering lock: Unlock 8
10 B Ground — — — 0
11 YIPDM E/R current
signalOutputSTART At starter motor cranking 5
LOCK Any condition other than above 2
12 R Feed back signal OutputLOCKSleep condition (30 seconds or more
after all doors are closed under the
condition that the power supply posi-
tion is in the LOCK position)1
—Wake-up condition (any condition
other than above)0
13 R Starter relay OutputSTART At starter motor cranking Battery voltage
— Any condition other than above 4
14 SB Power source (fuse) Input — — Battery voltage
15 LPower source (fus-
ible link)Input — — Battery voltage
17 GPower source (fus-
ible link)Input — — Battery voltage
Page 1083 of 4647
BL-150
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
Revision: 2007 April2007 M35/M45
CONSULT-II Functions (INTELLIGENT KEY)NIS001YK
CONSULT-II can display each diagnostic item using the diagnostic test modes as shown below.
CONSULT-II Inspection ProcedureNIS001YL
CAUTION:
If CONSULT-II is used with no connection CONSULT-II CONVERTER, malfunctions might be detected
in self-diagnosis depending on control unit which performs CAN Communication.
BASIC OPERATION
Refer to GI-38, "CONSULT-II Start Procedure" .
CONSULT-II Application ItemsNIS001YM
SELF-DIAGNOSTIC RESULTS
How to Read SELF-DIAGNOSTIC RESULTS
Part to be diagnosed Test item, Diagnosis mode Description
Intelligent KeyWORK SUPPORT Changes settings for each function.
SELF-DIAG RESULTS Intelligent Key unit performs CAN communication diagnosis.
DATA MONITOR Displays Intelligent Key unit input data in real time.
CAN DIAGNOSTIC SUPPORT
MONITORThe results of transmit/receive diagnosis of CAN Communication can
be read.
ACTIVE TESTOperation of electrical loads can be checked by sending driving signal
to then.
ECU PART NUMBER Displays Intelligent Key unit part No.
PIIB6280E
Suspect Systems
[DTC]Diagnostic item is detected when... Repair work Reference page
CAN COMM CIRCUIT
[U1000]Malfunction is detected in CAN communicationPerform CAN communi-
cation system inspectionBL-179
CONTROL UNIT (CAN)
[U1010]Malfunction is detected in CAN communication caused
by Intelligent Key unit internal malfunctionReplace Intelligent Key
unit.BL-179
STRG COMM 1
[B2013]Communication malfunction with steering lock unit is
detectedCheck steering lock unitBL-155
STEERING LOCK UNIT
[B2551]Even if the communication with steering lock unit is
normally performed, the steering lock is malfunctioningReplace steering lock
unitBL-157
INTELLIGENT KEY
[B2552]Internal malfunction is detected in Intelligent Key unitReplace Intelligent Key
unit.BL-161